Grenoble is the prefecture and largest city of the Isère department in the Auvergne-Rhône-Alpes region of southeastern France. It was the capital of the Dauphiné historical province and lies where the river Drac flows into the Isère at the foot of the French Alps. The population of the commune of Grenoble was 158,198 as of 2019, while the population of the Grenoble metropolitan area was 714,799 which makes it the largest metropolis in the Alps, ahead of Innsbruck and Bolzano.